Bulletproof Front Differential Re-Build 2012-2013 900

The Sandcraft 2nd generation Bulletproof front differential rebuild for 2012 to 2013 Polaris 900 models replaces every plastic OEM part and upgrades all of the internals. It is aimed at machines that will not engage 4WD, stick in 4WD or make noise.

Why it holds up

• Billet torsion spring retainer
• 6 tooth billet Sprague cage
• 6 tooth 4130 cage plate
• Upgraded bearings and seals

Fits

• Polaris 900, 2012 to 2013

In the box

• Billet torsion spring retainer
• 6 tooth billet Sprague cage
• 6 tooth 4130 cage plate
• Upgraded bearings and seals

Good to know

• This is a rebuild service. You send in your front differential. A certified tech troubleshoots it, installs the upgraded bearing kit, sets ring and pinion lash with custom shims and bench load tests the diff before it ships back.
• You are responsible for shipping the diff in. Contact us before you ship.
• The diff ships back with 2 ounces of Justice Brothers gear oil treatment. Top it off with oil before you ride.